Home / 99,864.99-137,810.57-54,542.25

Finding the Fourth Proportional to 99,864.99, 137,810.57 and 54,542.25

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Solution

The fourth proportional to 99,864.99, 137,810.57 and 54,542.25 is: 75,266.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,864.99 : 137,810.57 = 54,542.25 : x
  2. Step 2: Convert to fraction form
    99,864.99/137,810.57 = 54,542.25/x
  3. Step 3: Cross multiply
    99,864.99x = 137,810.57 × 54,542.25
  4. Step 4: Simplify right side
    99,864.99x = 7,516,498,288.87
  5. Step 5: Solve for x
    x = 7,516,498,288.87/99,864.99
  6. Step 6: Final answer
    x = 75,266.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.